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FKIE_CVE-2022-1786

Vulnerability from fkie_nvd - Published: 2022-06-02 14:15 - Updated: 2026-06-17 04:23
Summary
A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.

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          "vendor": "n/a",
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              "status": "affected",
              "version": "kernel v5.10 and v5.11"
            }
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      "source": "secalert@redhat.com"
    }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use-after-free flaw was found in the Linux kernel\u2019s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo de uso de memoria previamente liberada en el subsistema io_uring del kernel de Linux en la forma en que un usuario configura un anillo con IORING_SETUP_IOPOLL con m\u00e1s de una tarea completando env\u00edos en este anillo. Este fallo permite a un usuario local colapsar o escalar sus privilegios en el sistema"
    }
  ],
  "id": "CVE-2022-1786",
  "lastModified": "2026-06-17T04:23:06.627",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    ],
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2022-06-02T14:15:33.150",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2087760"
    },
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
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          "value": "CWE-843"
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      "type": "Secondary"
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          "value": "CWE-416"
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          "value": "CWE-843"
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      "source": "nvd@nist.gov",
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}



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